CN206816411U - A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission - Google Patents

Abstract

The purpose of this utility model is to provide an integrated ring manifold wall gas fuel injection mixing device for mixing intake air. The gas fuel is transported to the device through the pipeline, first passes through the gas injection valve, and the actuator controls the valve core. Control the opening and closing of the valve; the stability of the opening and closing of the valve can be guaranteed through the guide pin, pressure balance hole, pressure balance groove and pressure stabilizing chamber, and the responsiveness of the device's air supply and cut-off can be enhanced; through the axial main air groove in the valve, it can directly The mixed air intake mode of air intake and circumferential air supplementary air intake can achieve large flow rate, and at the same time, it can avoid air flow interference and realize the stability of air supply to the device; through the cavity structure of the fuel diffusion tube, the fuel can be distributed in the entire device, realizing The continuity and responsiveness of the gas supply of the gas supply device; through the branch pipe chute structure, the jetted gas fuel forms a vortex, which promotes the mixing degree of fuel and air, which is beneficial to combustion and improves the working performance of the device.

Description

An integrated ring manifold wall gas fuel injection mixing device for mixed intake air

technical field

The utility model relates to an air intake device, in particular to an air intake device of a gas fuel engine.

Background technique

Increasing emission standards and increasingly severe energy crisis pose new challenges to engine technology. Many gaseous fuels, including natural gas, have become the research focus of many researchers at home and abroad as alternative fuels for engines, and gaseous fuel engines have also become the subject of extensive research. A complete set of air intake devices, including many parts from gas injection valves to intake manifolds to cylinder valves, each part through which fuel and air flow is of great significance to the performance of gas fueled engines. For the injection of gaseous fuel, it is required to have a large injection flow rate, high injection efficiency, stable injection and good response; and for the flow of gaseous fuel and air, it is necessary to make the gaseous fuel and air fully flow before entering the cylinder. Mixing to improve fuel combustion efficiency and save energy consumption. Therefore, in order to achieve the above purpose, the utility model specially designs an integrated ring manifold wall gas fuel injection mixing device for mixing intake air. This air intake integrated system improves the function of the entire air intake device, has the characteristics of fast fuel supply response, high stability, and large flow rate, and can fully mix fuel with air before entering the cylinder to improve combustion efficiency.

In order to achieve high responsiveness of fuel supply and full mixing of fuel and air, many researchers have studied a series of air intake systems. Although these system structures provide a better method for gas supply, there are also some problems. insufficient. For example: CN106050479A patent "a gas injection valve and injection pipe structure, installation and arrangement method" introduces a kind of engine gas injection valve and nozzle structure, which is characterized in that many rows of nozzles are opened on the side wall of the nozzle, each row The staggered distribution of the nozzles enhances the mixing of fuel and air to a certain extent, but after the gaseous fuel is ejected from the nozzles, the gas concentration in the radial direction of the intake port will gradually decrease, which will also cause the mixing of fuel and air. insufficient.

Contents of the invention

The purpose of the utility model is to provide an integrated ring manifold wall gas fuel injection mixing device with good mixing degree of fuel and air and high combustion efficiency.

The purpose of this utility model is achieved in that:

The utility model is an integrated ring manifold wall gas fuel injection mixing device for mixing intake air, which is characterized in that it includes a gas injection valve, a connecting gas cover, and a fuel diffusion pipe;

The gas injection valve includes a valve body, a valve seat, an electromagnet, and a valve core assembly. The electromagnet is installed on the valve body, the valve body is installed on the valve seat, and a valve space is formed between the electromagnet, the valve body, and the valve seat. A coil is wound in the electromagnet, and the spool assembly is located in the valve space and is arranged below the electromagnet. The spool assembly includes an armature, a spring seat, a bottom plate, a valve core, a guide pin, and the armature, the bottom plate, and the spool are from top to bottom. The lower arrangement is connected together by fastening bolts at the same time. The spring seat is located outside the armature and forms an annular groove with the armature. The electromagnet is provided with an annular groove. The two ends of the main return spring are respectively arranged in the annular groove of the electromagnet and the spring seat. In the annular groove of the armature, a guide pin is installed at the center of the armature, and the guide pin extends into the electromagnet, and an auxiliary return spring is arranged in the electromagnet, and the two ends of the auxiliary return spring contact the electromagnet and the guide pin respectively, and a pressure balance hole is arranged in the guide pin , the pressure balance groove is set on the bottom plate, the valve core is hollow, the center pressure stabilizing chamber is set on the valve seat below the valve core, the end pressure stabilizing cavity is set on the outer end of the valve seat, the pressure balancing hole, the pressure balancing groove, the valve core The hollow part communicates with the central pressure stabilizing chamber to form an internal space. The valve core is provided with a sealing ring, which forms a ring cavity. The upper surface of the valve core is provided with an axial main air groove, and the ribs are provided with circumferential air holes. The diversion cone angle is set at the air supply hole, the air outlet ring is set on the valve seat, the air outlet ring is located under the ring cavity, and the air outlet is set under the air outlet ring;

The fuel diffusion tube includes a main body of the gas pipe, the main body of the gas pipe includes a main pipe and a branch pipe, the main pipe is a hollow ring structure, and a communication hole for the main pipe is arranged on the ring structure. The structure is connected, the main pipe is connected and communicated with the connecting gas hood, the central hole of the main pipe is connected with the air intake channel, the branch pipe area behind the central hole of the main pipe constitutes the gas mixing area, and all the branch pipes are attached to the intake manifold pipe wall and distributed around, and the inner side of the branch pipe is opened chute;

The air outlet is communicated with the air cover.

The utility model can also include:

1. The upper part of the main tube connected to the gas hood is a wave-shaped structure, and the connecting hole of the main tube is a circular platform structure.

2. The end of the branch pipe is provided with a semicircular opening, and there are four inclined slots on each branch pipe, and the included angles between them and the axis of the intake manifold are 30°, 30°, 45°, and 60° respectively.

3. The valve body is provided with a protruding part, and the protruding part is provided with an air inlet. The valve body below the air inlet is provided with a diversion chamber. The air inlet and the diversion chamber are connected to form an external space, and the external space communicates with the internal space. ;

The gas flows vertically into the diversion chamber through the air inlet, and flows into the outer space and inner space filled with the valve body along the diversion chamber, part of which flows into the central pressure stabilization chamber through the pressure balance hole, and the end pressure stabilization chamber and diversion chamber Connected;

During the working process of the gas injection valve, when the coil is not energized, under the pretightening force of the main return spring and the auxiliary return spring, the sealing ring on the valve core is closely matched with the upper surface of the valve seat, and the gas is filled with gas. The external space and internal space inside the valve body; after the coil is energized, the armature is subjected to the upward electromagnetic force, and the valve core assembly moves upward after overcoming the pretightening force of the main return spring and the auxiliary return spring, and the valve core is separated from the seat surface , the gas injection valve is opened, the gas path is opened, the gas flows in through the mixed air intake mode of the axial main gas groove and the circumferential air supply hole, passes through the ring cavity, flows out vertically from the air outlet hole and enters the connecting gas cover, and then enters the fuel diffusion pipe. The gas diffuses in the ring structure of the main pipe, and then flows into each branch pipe. The gas flowing into the branch pipes is sprayed into the gas mixing area through each chute, and at the same time, the air enters the gas mixing area from the air inlet through the central hole of the main pipe. Under the action of the eddy current, gas and air are mixed and flow into the intake manifold; after the coil is de-energized, under the action of the pre-tightening force of the main return spring and the auxiliary return spring, the armature moves downward, and the valve core assembly as a whole Move down until the surface of the valve core fits with the surface of the valve seat and returns to the initial position, the gas injection valve is closed and the gas path is closed.

The utility model has the advantages that: the utility model not only has the characteristics of high fuel injection stability and large flow rate, but also has the advantages of good mixing degree of fuel and air and high combustion efficiency; through guide pins, pressure balance holes, pressure balance grooves and The pressure stabilizing chamber can ensure the stability of the opening and closing of the valve, and enhance the response of the device to supply air and shut off air; through the mixed air intake mode of direct air intake from the axial main air groove in the valve and air intake from the circumferential air supplement hole, a large flow rate is achieved, At the same time, it can avoid airflow interference and realize the stability of the gas supply of the device; through the cavity structure of the fuel diffusion tube, the fuel can be distributed throughout the device, realizing the continuity and responsiveness of the gas supply of the gas supply device; through the structure of the branch pipe chute, the The ejected gaseous fuel forms a vortex, which promotes the mixing degree of fuel and air, which is beneficial to combustion and improves the working performance of the device.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is an overall schematic diagram of the gas injection valve;

Fig. 3 is a schematic diagram of the spool assembly;

Fig. 4 is a perspective view of a fuel diffusion tube;

Figure 5 is a front view of the fuel diffusion tube;

Figure 6 is a flow diagram of gaseous fuel.

detailed description

The utility model is described in more detail below in conjunction with accompanying drawing example:

1-6, an integrated ring manifold wall gas fuel injection mixing device for mixed intake air in the utility model is divided into a gas injection valve 1, a connecting gas cover 2 and a fuel diffusion pipe 3. The gas injection valve 1 is mainly composed of an electromagnet 4, a main return spring 5, an auxiliary return spring 6, a valve core assembly 7, a valve body 8 and a valve seat 9. The electromagnet 4 is fixed on the valve body 8 by fixing bolts, and the center There is a straight groove with a certain depth, and the auxiliary return spring 6 is arranged on the top of the straight groove, and the coil is wound in the ring groove inside the electromagnet 4; a valve core assembly 7 is arranged under the electromagnet, and a valve core assembly 7 is arranged below the valve core assembly 7. The structure of the seat 9; the valve seat 9 and the valve body 8 are fixedly connected together by bolts, and the mating surface between the two is sealed by a sealing rubber ring. The function of the gas cover 2 is to divide the original mixed air passage into two parts, through which gas fuel and air flow respectively. The gas cover adopts a large rounded structure to avoid throttling loss caused by the angular structure and enhance the gas supply capacity of the device. One end of the gas hood 2 is closely connected to the outlet of the gas injection valve 1 , and the other end is closely connected to the fuel diffusion pipe 3 . The fuel diffusion pipe 3 is located in the intake manifold and arranged close to the intake manifold. According to the structural characteristics, it can be divided into a main pipe 20 and a branch pipe 21. The main pipe 20 is an annular cavity structure connected to the air cover 2. The central hole of the main pipe is connected to the air Inlet duct; on the other side of the main pipe 20, several branch pipes 21 are connected, and the main pipe 20 and the branch pipes 21 communicate with each other. A series of inclined grooves 22 with different angles are set on the inner wall of the branch pipe 21. The angle of the inclined grooves adopts a gradual change form. The gaseous fuel in the mixing area forms a vortex to speed up the mixing of fuel and air; a semicircular hole is opened at the end of the branch pipe to prevent the gaseous fuel from being blocked in the branch pipe.

Figure 3 shows that the valve core assembly 7 is located in the valve body 8, and is mainly composed of a guide pin 11, an armature 12, a spring seat 13, a bottom plate 14 and a valve core 18, and is characterized in that: the armature 12, the spring seat 13, the bottom plate 14 and The valve core 18 is connected together by fastening bolts from top to bottom, the inner side surface of the spring seat 13 is in contact with the side surface of the armature 12, and the main return spring 5 is located in the annular groove between the electromagnet 4 and the spring seat 13; A guide pin 11 is arranged between the straight groove in the center of the electromagnet 4 and the center hole of the armature 12, one end of which is fixed by a clip spring to the guide pin 11 and the armature 12, and the other end is pushed against the auxiliary return spring 6 in the straight groove of the electromagnet 4 , so that the valve core assembly 7 can maintain the verticality during the movement process, and enhance the reliability of its work; at the same time, there is a pressure balance hole 16 inside the guide pin 11, and the pressure balance hole 16 passes through the pressure balance groove on the bottom plate 14 17 communicates with the outer space of the spool 18 to achieve pressure balance inside and outside the spool 18, which can prevent the armature 12 from being subjected to axial force and improve the response speed of the armature 12; Composition, on the ribs 19 of the valve core 18, a circumferential air supply hole 25 is opened, so as to increase the fuel flow rate and reduce the air flow interference;

During the working process of the gas injection valve, when the coil is not energized, under the pretightening force of the main return spring 5 and the auxiliary return spring 6, the spool assembly 7 remains stationary at the initial position, and the valve in the spool assembly 7 The lower surface of the sealing ring 15 of the core 18 is closely attached to the upper surface of the gas outlet ring 10 of the valve seat 9. At this time, the gas outlet ring 10 is not connected to the inner space of the valve body 8, and the gas is filled with the valve body 8 of the gas injection valve. The entire space inside.

Both the center and the periphery of the valve seat 9 are provided with a pressure stabilizing chamber 26, which can effectively suppress the fluctuation of gas pressure inside the gas injection valve, make the ventilation uniform, realize the stable and reliable operation of the airflow, and realize high response speed.

When the engine enters the intake stroke, the coil is energized, the electromagnet 4 and the armature 12 are magnetized, a magnetic circuit is formed between the electromagnet 4 and the armature 12, and the armature 12 is subjected to the electromagnetic force to overcome the force of the main return spring 5 and the auxiliary return spring 6 After the pre-tightening force, it moves upwards, driving the valve core 18 to move upwards and separate from the surface of the valve seat 9 until the upper surface of the spring seat 13 contacts the lower surface of the electromagnet 4. The direction positioning is controlled by the cooperation between the guide pin 11 and the electromagnet 4. At this time, the gas circuit is opened, the solenoid valve is opened, and the gas is quickly mixed by the axial main air groove 24 and the circumferential air supply hole 25. Inflow, this air intake method can increase the intake air flow coefficient, realize large flow, effectively improve the air supply efficiency of the device, and at the same time avoid air flow interference, and realize the balance and stability of the air path; after that, through multiple ring cavities 27, and finally flow out vertically from the air outlet 28;

The fuel flows into the fuel diffusion pipe 3 through the gas cover 2, and the gas fuel diffuses in the ring structure of the main pipe 20, and then flows into each branch pipe 21, and the gas fuel flowing into the branch pipe 21 is sprayed into the gas mixing area through each chute 22, At the same time, fresh air enters the gas mixing area from the air inlet through the central hole of the main pipe. Since the branch pipe is distributed close to the intake manifold, it destroys the air boundary layer formed by the manifold wall and increases the turbulent kinetic energy of the air flow. In addition, because the chute 22 on the branch pipe adopts a gradually changing angle design, the gaseous fuel will generate a vortex when it is injected into the mixing area. Under the action of the vortex, the fuel and air can be fully mixed and then flow into the cylinder.

After the intake stroke of the engine ends, the inner coil of the gas injection valve 1 is de-energized, and the electromagnetic force received by the armature 12 disappears. Under the action of the auxiliary return spring 6, the armature 12 moves downward, driving the valve core 18 to move downward until the surface of the valve core 18 and the surface of the valve seat 9 fit together, the armature 12 returns to the initial position, the gas circuit is closed, and the gas injection valve 1 off. The flow of fuel in the fuel diffusion pipe 3 also basically stops, and the fuel is stored in the gas cover 2, the main pipe 20 and each branch pipe 21. When the next intake stroke occurs, the gas injection valve 1 and the cylinder valve are opened, and the fuel stored in the gas cover 2, the main pipe 20, and the branch pipe 21 will be pushed to the gas mixing area by the subsequent fuel, and enter into the gas mixing area after being mixed with air. cylinder, thereby improving the responsiveness of the air supply of the entire intake system.

The utility model relates to an integrated ring manifold wall gas fuel injection mixing device for mixing intake air, which is divided into a gas injection valve, a connecting gas cover and a fuel diffusion pipe. The gas injection valve is mainly composed of electromagnet, main and auxiliary return spring, valve core assembly, valve body and valve seat. The electromagnet is fixed on the valve body through fixing bolts, and there is a straight groove with a certain depth in the center, and the top of the straight groove is The auxiliary return spring is arranged, and the coil is wound in the ring groove inside the electromagnet; the valve core assembly is arranged under the electromagnet, and the valve core assembly is located in the valve body, mainly composed of a guide pin, an armature, a spring seat, a bottom plate and a valve body. The armature, spring seat, bottom plate and valve core are connected together by fastening bolts from top to bottom, the side surface inside the spring seat is in contact with the side surface of the armature, and the main return spring is located between the electromagnet and the spring seat. In the annular groove; a guide pin is arranged between the straight groove in the center of the electromagnet and the center hole of the armature, one end of which is fixed with the armature by a circlip, and the other end is supported on the auxiliary return spring in the straight groove of the electromagnet, so that Make the spool assembly maintain verticality during the movement process, and enhance its working reliability; The fuel flow rate also reduces the air flow interference; the seat structure is under the valve core; the seat and the valve body are fixedly connected by bolts, and the mating surface between the two is sealed by a sealing rubber ring. The function of the gas hood is to divide the original mixed air channel into two parts, through which gas fuel and air flow respectively. One end of the gas hood is tightly connected to the outlet of the gas injection valve, and the other end is closely connected to the fuel diffusion pipe. The fuel is ejected from the gas injection valve and enters the diffusion pipe through the gas hood. The fuel diffusion pipe is located in the intake manifold and is arranged close to the intake manifold. According to the structural characteristics, it can be divided into main pipes and branch pipes. The main pipe is an annular cavity structure connected to the air cover, and the central hole of the main pipe is connected to the air intake channel; The other side of the main pipe is connected with several branch pipes, and the main pipe and the branch pipes communicate with each other. A series of inclined grooves with different angles are set on the inner wall of the branch pipe. The angle of the inclined groove adopts a gradual change form. The gaseous fuel forms a vortex to speed up the mixing of fuel and air; a semicircular hole is opened at the end of the branch pipe to prevent the gaseous fuel from being blocked in the branch pipe.

The guide pin part of the gas injection valve is located in the center groove of the electromagnet and the armature, and a pressure balance hole is set at the center. The pressure balance hole communicates with the circumferential pressure balance groove opened on the bottom plate below the guide pin, so that the internal and external gas circuits are balanced. , There is no pressure difference between the inside and outside of the valve core assembly, which avoids additional axial force when it is in motion.

The combination of the valve core assembly and the valve seat in the gas injection valve adopts the form of staggered distribution of the sealing ring and the gas outlet ring for surface sealing. At the same time, the large ring structure can reduce the structural quality, reduce the impact, and improve the stability of the device. sex.

There are pressure stabilizing chambers in the center and periphery of the gas injection valve seat in the device. The stabilizing chamber at the center of the valve seat communicates with the gas space inside the valve core assembly, while the stabilizing chamber at the periphery of the valve seat communicates with the guide in the valve body. The flow chambers are connected, which can effectively suppress the fluctuation of the gas pressure inside the valve, improve the working stability of the device, and realize the high response speed of the device.

The fuel injection outlet passage part in the device is composed of the main gas groove in the valve body, the center hole of the rib plate of the valve core, the sealing ring groove of the valve core and the gas outlet ring groove of the valve seat; when the gas injection valve is in the closed state, the sealing ring groove and the gas outlet ring The grooves are staggered to form a sealing surface to prevent fuel from entering the intake manifold; when the gas injection valve is opened, fuel can enter the gas outlet ring groove from the main gas groove, or enter the gas outlet ring groove from the center hole of the rib plate through the sealing ring groove; This mixed air intake method increases the intake air flow coefficient, realizes a large flow rate of the device, effectively improves the air supply efficiency of the intake device, and at the same time avoids air flow interference, and realizes the stability of the air supply of the entire device.

The surface structure of the gas cover in the device adopts a relatively large radius of curvature to avoid sharp edges and corners, which can reduce the throttling loss during the process of injecting fuel from the injection valve into the main part of the air pipe through the gas cover.

The branch pipes in the fuel diffuser pipe in the device are evenly arranged close to the pipe wall of the gas manifold. This structural design can destroy the air boundary layer formed by the manifold wall when the gas flows, and increase the turbulent kinetic energy of the air flow to enhance Mixing between fuel and air.

An integrated ring manifold wall gas fuel injection mixing device for mixed intake can enhance the responsiveness of fuel supply. First, the gas injection valve adopts a guide pin and a pressure balance hole structure to enhance the opening response of the valve core; when the gas injection valve is opened, the fuel It flows into the dye diffusion pipe through the gas hood, flows into the intake manifold through a series of chute action and forms a vortex, fully mixes with the air, and finally flows into the cylinder; after the gas injection valve and the cylinder valve are closed, Because this device can isolate fuel and air to a certain extent, the gaseous fuel that has been ejected from the injection valve but failed to enter the cylinder in time can be stored in the cavity of the fuel diffusion pipe to prevent diffusion loss. After the gas valve is opened, this part of the gaseous fuel can be quickly supplied to the cylinder for combustion, improving fuel supply responsiveness.

Claims (5)

1. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission, it is characterized in that：Including gas injection Penetrate valve, connection gas hood, fuel anemostat；

The fuel gas injection valve includes valve body, valve seat, electromagnet, valve element assembly, and electromagnet is arranged on valve body, valve body installation On valve seat, valve space is formed between electromagnet, valve body and valve seat, wound around coil in electromagnet, valve element assembly is located at valve In space and it is arranged on below electromagnet, described valve element assembly includes armature, spring base, bottom plate, valve element, guide finger, rank Iron, bottom plate, valve element arrange while linked together by fastening bolt that spring base is located at outside armature and and armature from top to bottom Between form annular groove, annular groove is set inside electromagnet, and the both ends of master reset spring are arranged in the annular groove of electromagnet In the annular groove of spring base, guide finger is installed at armature center, guide finger is stretched in electromagnet, set in electromagnet auxiliary multiple Position spring, the both ends of auxiliary back-moving spring contact electromagnet and guide finger, pressure compensation opening are set in guide finger, is set on bottom plate respectively Put relief groove, valve element is hollow structure, sets center pressure stabilizing cavity on the valve seat below valve element, the outer end of valve seat sets end Pressure stabilizing cavity, pressure compensation opening, relief groove, the hollow space of valve element and center pressure stabilizing cavity communicate and form inner space, Seal band is set on valve element, and seal band forms ring cavity, and valve element upper surface opens up axially main air drain, circumferential benefit is provided with fin Stomata, and diversion angle of cone is set at tonifying Qi hole, outlet annulus is set on valve seat, and outlet annulus is located at below ring cavity, goes out compression ring Band lower section sets venthole；

The fuel anemostat includes tracheae main body, and tracheae main body includes supervisor and branch pipe, is responsible for the circular ring structure for cavity, circle Supervisor's intercommunicating pore is set on ring structure, is main tube hub hole in the middle part of annulus, the front end of branch pipe communicates with the circular ring structure being responsible for, main Pipe is connected and communicated be connected gas hood, and supervisor's centre bore connects free-air diffuser, is responsible for the branch pipe region composition at centre bore rear Combustion gas mixing area, all branch pipes are affixed on the distribution of inlet manifold tube wall surrounding, skewed slot are opened up on the inside of branch pipe；

Venthole connection connection gas hood.

2. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission according to claim 1, It is characterized in that：It is wavy shaped configuration above one end of supervisor's connection gas hood, it is frustum cone structure to be responsible at intercommunicating pore.

A kind of 3. integrated form ring manifold wall gaseous fuel injection mixing dress of mixed admission according to claim 1 or 2 Put, it is characterized in that：The end of branch pipe sets semicircle perforate, and the skewed slot on each branch pipe is four, itself and inlet manifold axis Angle is respectively 30 °, 30 °, 45 °, 60 °.

A kind of 4. integrated form ring manifold wall gaseous fuel injection mixing dress of mixed admission according to claim 1 or 2 Put, it is characterized in that：Extension is set on valve body, and extension sets air inlet, and water conservancy diversion is set in the valve body below air inlet Chamber, air inlet, diversion cavity communicate and form exterior space, and exterior space communicates with inner space；

Combustion gas vertically flows into diversion cavity through air inlet, and exterior space and inside sky full of valve inner are flowed into along diversion cavity Between, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；

In the fuel gas injection valve course of work, when coil is not powered on, acted in the pretightning force of master reset spring and auxiliary back-moving spring Under, the upper surface of seal band and valve seat on valve element is fitted close, the outside of valve inner of the combustion gas full of fuel gas injection valve Space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset bullet Spring, auxiliary back-moving spring pretightning force after move upwards, valve element separates with valve base surface, fuel gas injection valve open, gas circuit open, combustion Gas is flowed into by the axially mixed admission mode in main air drain and circumferential tonifying Qi hole, by ring cavity, is vertically flowed out into by venthole Gas hood is connected, incoming fuel anemostat, combustion gas are spread in the circular ring structure of supervisor afterwards, then are flowed into each branch pipe, stream The combustion gas entered to branch pipe is injected to combustion gas mixing area by each skewed slot, and at the same time air passes through in supervisor from free-air diffuser Heart hole enters combustion gas mixing area, and in the presence of vortex, combustion gas is mixed with air and is flowed into inlet manifold；Coil blackout Afterwards, under the effect of the pretightning force of master reset spring and auxiliary back-moving spring, armature moves downward, the overall fortune downwards of valve element assembly It is dynamic, until spool face is bonded with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.

5. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission according to claim 3, It is characterized in that：Extension is set on valve body, extension sets air inlet, and diversion cavity is set in the valve body below air inlet, Air inlet, diversion cavity communicate and form exterior space, and exterior space communicates with inner space；

Combustion gas vertically flows into diversion cavity through air inlet, and exterior space and inside sky full of valve inner are flowed into along diversion cavity Between, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；

In the fuel gas injection valve course of work, when coil is not powered on, acted in the pretightning force of master reset spring and auxiliary back-moving spring Under, the upper surface of seal band and valve seat on valve element is fitted close, the outside of valve inner of the combustion gas full of fuel gas injection valve Space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset bullet Spring, auxiliary back-moving spring pretightning force after move upwards, valve element separates with valve base surface, fuel gas injection valve open, gas circuit open, combustion Gas is flowed into by the axially mixed admission mode in main air drain and circumferential tonifying Qi hole, by ring cavity, is vertically flowed out into by venthole Gas hood is connected, incoming fuel anemostat, combustion gas are spread in the circular ring structure of supervisor afterwards, then are flowed into each branch pipe, stream The combustion gas entered to branch pipe is injected to combustion gas mixing area by each skewed slot, and at the same time air passes through in supervisor from free-air diffuser Heart hole enters combustion gas mixing area, and in the presence of vortex, combustion gas is mixed with air and is flowed into inlet manifold；Coil blackout Afterwards, under the effect of the pretightning force of master reset spring and auxiliary back-moving spring, armature moves downward, the overall fortune downwards of valve element assembly It is dynamic, until spool face is bonded with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.